128 results about "Glycerophosphates" patented technology

The invention discloses a method for preparing lysophosphatidyl choline by enzymatic alcoholysis, which comprises: adding phosphatidylcholine into low-carbon alcohol solution, uniformly stirring and mixing at a certain temperature, adding lipase, and allowing the lipase to catalyze the alcoholysis of phosphatidylcholine with constant-temperature stirring to obtain the lysophosphatidyl choline. The method has the advantages that: (1) the solubility of phosphatidylcholine, lysophosphatidyl choline serving as the product, and aliphatic ester, glycerophosphorylcholine and very small amount of fatty acid, which serve as byproducts, in the reaction system is improved, and the conversion rate of the lysophosphatidyl choline is high; (2) the aliphatic ester, a small amount of glycerophosphate and a very small amount of fatty acid are generated in an alcoholysis reaction process, but the pH value of the system is not changed, and the influence of the solvent on the activity of the lipase is relieved and the catalytic reaction activity of the lipase is high; (3) the properties of the fatty acid, the aliphatic ester and glycerophosphorylcholine, which are products of side reactions, are very different from those of the lysophosphatidyl choline, so the lysophosphatidyl choline product can be separated and purified very easily; and (4) the alcohol, which is the product of the reaction, can be removed easily.

The invention relates to stomatology and perfume industry in particular to therapeutic formulation for oral cavity care. The invention refers to oral hygiene means and can be applied for preparation of medical and prophylactic tooth-pastes, gels, liquids for oral care as well as other compositions like chewing gums, jellies, etc. Formulation containing orally applicable active and inert components involves bromelain in amount of 0.01÷1 wt %, xylitol 1.5÷20 wt %. At best bromelain content is 0.1—0.8 wt %, xylitol content—2.2-18 wt %. For attaining remineralizing effect formulation contains anti-carious mineral additive 0.05-3.0 wt % of the list of active components. At best anti-carious mineral additive content is 0.2-2.5 wt %. There are used calcium glycerophosphate and inorganic or organic magnesium salt as anti-carious mineral additive. It is acceptable to use sodium monofluorphosphate, potassium monofluorphosphate, calcium monofluorphosphate or magnesium monofluorphosphate in amount of 0.5-1.5 wt % as anti-carious mineral additive Optimum concentration is 0.8-1.1 wt %.

The invention provides a sunscreen and gel composition, a preparation method and an application in cosmetics thereof. The sunscreen and gel composition comprises the following components in percentage by weight: 2 to 20 percent of chitin, 5 to 25 percent of glycerophosphate, 2 to 20 percent of sunscreen, and 40 to 80 percent of water, on the basis of the total weight of the sunscreen and gel composition. The sunscreen and gel composition can stably cover the sunscreen to prevent the sunscreen from directly contacting with human skins and effectively avoid irritation and allergy of a human body, and can remarkably improve the ultraviolet protection capability of sunscreen products.

The invention belongs to the technical field of bone tissue engineering, and discloses a nanometer hydroxyapatite/chitosan porous composite scaffold material as well as a bionic dialysis mineralization preparation method and application thereof. The method comprises the following steps that (1) chitosan is dissolved in an acetic acid solution to obtain a chitosan solution; the chitosan solution isput into a container for freezing; freeze drying is performed to obtain an early-period chitosan porous scaffold; (2) the early-period chitosan porous scaffold is soaked in alkali liquid; water washing is performed until the pH is 7 to 8; freeze drying is performed to obtain a chitosan porous scaffold; (3) the chitosan porous scaffold is soaked in an alkaline phosphatase solution; then, the chitosan porous scaffold and the alkaline phosphatase solution are charged into a dialysis bag; the dialysis bag is put into a mixed solution of calcium glycerophosphate and CaCl2; constant-temperature constant-speed stirring is performed for mineralization; taking out, washing and freeze drying are performed to obtain the nanometer hydroxyapatite/chitosan porous composite scaffold material. The nanometer hydroxyapatite/chitosan porous composite scaffold material can be applied to the field of bone tissue engineering, particularly the bone defect repair.

The invention discloses a temperature-sensitive gel preparation, a preparation method thereof and an application of the temperature-sensitive gel preparation to preventing the transfer of calculus in lithotripsy. The preparation is prepared from the following components by weight percent: 16.5 to 26.5 percent of poloxamer, 1.0 to 3.0 percent of chitosan hydrochloride, 0.5 to 2.5 percent of glycerophosphate, 0.01 to 1 percent of synergistic auxiliary materials, and 67.0 to 81.99 percent of neutral buffer solution. The preparation method is simple, and when used in the lithotripsy, the product has a good effect of preventing the transfer of the calculus, so that the damage risk of the lithotripsy on peripheral tissues can be alleviated; moreover, the product is convenient to wash and high in application value.

The invention relates to a protein-free, hydrolysate-free and serum-free culture medium and a preparation method thereof. The culture medium contains the following substances: manganese gluconate, calcium citrate malate, disodium edetate, progesterone, alanyl-glutamine,glycerophosphate, fructose, vitamin C, vitamin E, sodium selenite, hydroxypropyl-beta-cyclodextrin, cholesterol, malic acid, oxaloacetic acid, vitamin B12, lipoic acid, ferrous sulfate, ferric citrate, uric acid, taurine, reduced glutathione, zinc sulfate, copper sulfate and ferric nitrate. The protein-free, hydrolysate-free and serum-free culture medium has the advantages that the cost is low, the difference among different batches of products is small, the purification step of down-stream products is simplified, and potential safety hazards are reduced.

The invention discloses recombinant escherichia coli, a method for preparing phospholipase C and application. The recombinant escherichia coli BL21(DE-3)-pET-28a-L.m-phospholipase C (PLC) of which the target gene is from listeria monocyogenes (L.monocytogenes) is utilized as a fermentation strain to carry out liquid fermentation, so as to prepare phospholipase C. The method disclosed by the invention is simple in enzyme production process, short in production cycle and low in cost. A glycerophosphate bond on glyceryl phosphatide C3 can be specifically hydrolyzed to produce diglyceride (DAG) by using recombinant phospholipase C; plant crude oil (soybean oil, colleseed oil, rice bran oil and the like) is degummed by phospholipase C.

The invention provides a simple mixing preparation method with which a gel form of chitosan/graphene oxide/beta-isodium glycerophosphate thermosensitive hydrogel can be formed under a temperature below 37 DEG C. Through rheological tests, the influences of chitosan concentration, beta-isodium glycerophosphate concentration and graphene oxide concentration upon chitosan hydrogel gelling temperature and time are researched. As a result, the chitosan concentration, beta-isodium glycerophosphate concentration and graphene oxide concentration are negatively correlated to chitosan thermosensitive hydrogel gelling temperature and time.

The invention discloses a passivation antibacterium treatment technology for the surface of a grinding roll of a corn flour mill. The passivation antibacterium treatment technology comprises the steps of (1) surface polishing; (2) deoiling treatment; (3) cleaning treatment; (4) passivation treatment; and (5) cleaning and drying. According to the passivation antibacterium treatment technology, under the action of a film coalescing aid composed of hydroxypropyl methyl cellulose, tributyl phosphate, calcium glycerophosphate, methacrylate modified 1,2-polybutadiene resin, polydimethylsiloxane and triethanolamine borate, phytic acid, citric acid, tartaric acid, potassium molybdate, zinc molybdate, calcium molybdate, nano silica and modified nano diatomite react with iron on the surface of the grinding roll while exerting a chelating connection function, and a uniform and compact meshy composite molecular film is formed, so that the hardness, toughness, abrasion resistance and corrosion resistance of the grinding roll are improved, the grinding roll has relatively high insect resistance and antibacterial performance, and the safety of food processing is guaranteed; and through the auxiliary function of ultrasonic, the service life of the finally prepared grinding roll is prolonged by 3 to 4 times.

The invention discloses a moisture absorbing and sweat releasing finishing agent. The finishing agent comprises, by weight, 13-20 parts of 4,4'-binitro benzhydrol, 20-25 parts of glycol dimercaptoacetate, 15-25 parts of nonyl phenol polyoxyethylene ether, 8-12 parts of 2-hydroxy-5-chloro benzophenone, 10-15 parts of silicone oil, 3-8 parts of 4-hydroxyphenylethylamine, 7-16 parts of glycerophosphate, 2-6 parts of sodium citrate, 1-6 parts of monopotassium phosphate and 30-50 parts of deionized water. The moisture absorbing and sweat releasing performance of textile fabric is improved remarkably after the finishing agent is adopted, sweat can be released effectively and timely, and generation of a stuffy feeling is avoided.

The invention discloses a leather softening agent and a preparing method thereof, and relates to the technical field of leather. The leather softening agent is mainly made of vinyl cyanide, glycerophosphate, lauryl diethanolamide, sodium carboxymethylcellulose, epoxy chloropropane, tributyl citrate, ammonium citrate, jojoba oil, Tween 80, ethylhexyl palmitate, amino silicon oil, microcrystalline wax, cetearyl glucoside, propylene glycol, water and auxiliaries. By means of the leather softening agent, the comprehensive moisturizing and nourishing care can be conducted on the leather, a surface layer is softer, and grease in the leather can be effectively prevented from volatilizing and getting lost so that the leather can be prevented from becoming hard. Components such as dipropylene glycol mono butyl ether, suet-base dihydroxy ethoxy amine oxide and ammonium alcohol ether sulphate are added in the auxiliaries so that the leather softening agent can further have the good dirt removing capability, and the quality of the leather can be better guaranteed.

The invention relates to an Aspergillus niger genetic engineering strain with high yield of organic acid under a low-dissolved oxygen condition. The construction steps of the genetic engineering strain are as follows: step 1, constructing a heterologously-expressed vhb gene plasmid, wherein the sequence fragment of the gene vhb is controlled by an Aspergillus niger 3-glycerophosphate dehydrogenasegene promoter PgpdA; and step 2, acquiring a heterogeneously-expressed vhb gene strain so as to obtain the Aspergillus niger genetic engineering strain with high yield of organic acid under a low-dissolved oxygen condition. Based on the natural characteristics that Aspergillus niger generates organic acid, the Aspergillus niger genetic engineering strain is obtained by modifying the physiologicalcharacteristics of Aspergillus niger through genetic recombination. Experiments prove that the ability of the aspergillus niger genetic engineering strain for producing organic acid under the condition of low dissolved oxygen is obviously improved, and an excellent strain is provided for preparing organic acid by a microbial fermentation method.

The invention discloses efficient whitening anti-cavity toothpaste and a preparation method thereof. The efficient whitening anti-cavity toothpaste is prepared from 15-45 wt% of abradant, 6-25 wt% of a wetting agent, 0.4-1.6 wt% of an adhesive, 2-5 wt% of a foaming agent and the balance diluent, and the efficient whitening anti-cavity toothpaste is also prepared from 0.1-0.3 wt% of calcium glycerophosphate, 0.5-1 wt% of sodium monofluorophosphate, 0.1-0.3 wt% of sodium fluoride, 0.5-3 wt% of sodium phytate and 0.1-0.5 wt% of sodium pyrophosphate. According to the efficient whitening anti-cavity toothpaste, by taking the abradant, the wetting agent, the foaming agent, the adhesive, the diluent, a compound anti-activity agent and a compound stain removing agent as raw materials and conducting proper proportioning, the prepared efficient whitening anti-cavity toothpaste has the stability required by conventional toothpaste, better anti-cavity, repairing, stain removing and whitening effects can be achieved, and a user can obtain healthy and bright white teeth easily.

Technical result of invention lies in practical realization of high-efficient remineralizing formulation using available and cheap components. Due to absence of fluorides it can be recommended to patients suffering from fluorosis, endocrine system diseases for the purpose of caries prophylaxis and non-carious affections. The formulation contains acceptable active and inert components. To the group of active components there belongs complex including sources of elements of magnesium, sodium, silica and potassium in quantity 1-11 wt. %. Here are ratios of atomic masses of elements of magnesium, sodium, silica, potassium, parts of active components complex, correspondingly, 21.3:9.3:1.67:1. As a source of magnesium element there is used magnesium chloride or magnesium glycerophosphate or magnesium citrate. As a source of sodium element there is used sodium chloride or sodium silicate. As a source of silica element there is used sodium metasilicate or potassium metasilicate. As a source of potassium element there is used potassium silicate.

One aspect of the present invention relates to methods of treating corneal edema comprising contacting a cornea with an ophthalmic irrigating composition comprising histidine. In certain embodiments, the ophthalmic irrigating compositions contact the corneal endothelium. Another aspect of the present invention relates to ophthalmic irrigating compositions for treating corneal edema comprising histidine and optionally, calcium glycerophosphate and/or glutathione disulfide.

The invention relates to a preparation process for a thermosensitive controlled-release material for a marine antifouling agent, which belongs to the field of marine antifouling technologies. The process comprises the following steps: dissolving chitosan in an HAc solution, adding tween 80 and acetone, carrying out high speed stirring and ultrasonic treatment, then adding isopropanol to form an oil/water dispersion system which is in an emulsified clear state, adding sodium tripolyphosphate for a cross-linking solidification reaction, carrying out filtration so as to remove liquor, flushing aresidual solvent with acetone and water, and carrying out refrigeration and vacuum drying so as to obtain microencapsulated particles; dissolving chitosan in the HAc solution again, dissolving sodiumbeta-glycerophosphate in water, adding a sodium beta-glycerophosphate solution into a chitosan solution under the conditions of ice water bath and stirring, continuing stirring, and adjusting the pH value of the solution to be 7.0; and dispersing the microencapsulated particles with water, then adding the dispersed particles into the chitosan solution, carrying out stirring, and then carrying outcentrifugation and drying so as to obtain the thermosensitive controlled-release material. The preparation process is simple and is convenient to control; and the prepared material has good quality, good controlled release performance, environment friendliness and a good application effect.

The invention discloses a multifunctional feed additive for milk cows, which is characterized by comprising the following components according to the weight portion: 4-7 of hoantchy root, 3-6 of angelica, 4-7 of seed of cowherb, 2-5 of liquorice, 5-8 of potassium chloride, 2-5 of sodium chloride, 1-2 of magnesium chloride, 2-5 of sodium bicarbonate, 0.006-0.03 of sodium monofluorophosphate, 0.02-0.05 of calcium glycerophosphate, 0.002-0.005 of citric acid and 5-10 of carriers. The multifunctional feed additive can increase the stress resistance capacity and the disease-resistant capacity, improves the milk cow improvement, has no residue and no drug resistance and can prevent decayed teeth and protect the teeth.

The invention discloses a preparation method of calcium glycerophosphate with high calcium content. The preparation method comprises the following steps of: (i) synthetic reaction: putting glycerol, monocalcium phosphate and phosphoric acid into an agitated reactor in proportion, and simultaneously adding a small amount of citric acid to undergo a synthetic reaction; (ii) diluting; (iii) filtering; (iv) concentrating; (v) precipitating; (vi) drying, and the like. The calcium glycerophosphate product prepared by adopting the preparation method disclosed by the invention has stable quality and high calcium content up to more than 95 percent and can simultaneously meet requirements of a calcium supplement and a toothpaste additive.

The invention discloses antistatic PBAT fiber which is composed of, by weight, 100 parts of polyadipic acid/polybutyl terephthalate, 25 parts of PLA, 0.5 part of antistatic agent, 0.1 part of blender,2 parts of plasticizer and 0.1 part of antioxidant, wherein the antistatic agent is a phosphate antistatic agent, and the blender is palmityl glycerophosphate. Using effect of the phosphate antistatic agent is improved by adding the blender in key technology; in actual application, consumption of the antistatic agent can be reduced greatly, so that the obtained fiber has good antistatic effect.

The invention discloses a decayed tooth preventing feed additive for improving animal immunizing power, which is characterized by comprising the following components according to the weight portion: 5-10 of spirulina powder, 1-3 of hoantchy root, 1-3 of radix codonopsitis, 1-5 of forsythia, 3-7 of purslane, 0.4-1 of honeysuckle, 0.2-0.5 of liquorice, 0.006-0.02 of sodium monofluorophosphate, 0.02-0.05 of calcium glycerophosphate and 0.002-0.005 of citric acid. The decayed tooth preventing feed additive is a pure natural Chinese material medical preparation, has no drug residue and side effects by being used for a long time, increases the organism immunizing power, has the function of preventing decayed teeth and low cost of raw materials, and is suitable for industrialized massive production; and products made of animals using the decayed tooth preventing feed additive always accord with the export standard without drug resistance.

The invention belongs to the technical field of paints, and particularly relates to water-based fruit and vegetable fresh-keeping paint and a preparation method thereof. According to the water-based fruit and vegetable fresh-keeping paint and the preparation method thereof, aqueous extract liquid of platycodon roots, aqueous extract liquid of tree peony bark, aqueous extract liquid of wild chrysanthemums, and aqueous extract liquid of rhizoma gastrodiae are used as preservatives, mixed liquid which is prepared by modifying a mixture consisting of D-calcium pantothenate, calcium glycerophosphate and zinc sulfate through a phosphate aqueous solution of which the pH is 4.3-5.2 is used as a fruit and vegetable softening inhibitor, an emulsifying agent, a thickening agent and a gelling agent are matched for use, so that the water-based fruit and vegetable fresh-keeping paint is prepared. The water-based fruit and vegetable fresh-keeping paint is simple in components, the used materials are green and non-toxic and the paint can be prepared without severe production equipment.